[ovs-dev] [PATCH 1/1] docs: Add flow control on i40e issue

[Flavio Leitner]

On Wed, Feb 12, 2020 at 02:22:14PM +0100, Tomasz Konieczny wrote:
> There is an issue with flow control configuration on i40e devices
> and it has a work around. We add this to documentation as known issue
> until a permanent solution is developed.
> 

Can you add pointers to how to set that to interrupt mode?

fbl

> Signed-off-by: Tomasz Konieczny <tomaszx.konieczny at intel.com>
> ---
>  Documentation/intro/install/dpdk.rst | 6 ++++++
>  1 file changed, 6 insertions(+)
> 
> diff --git a/Documentation/intro/install/dpdk.rst b/Documentation/intro/install/dpdk.rst
> index dbf88ec..9bc29f4 100644
> --- a/Documentation/intro/install/dpdk.rst
> +++ b/Documentation/intro/install/dpdk.rst
> @@ -687,6 +687,12 @@ Limitations
>    around is temporary and is expected to be removed once a method is provided
>    by DPDK to query the upper bound MTU value for a given device.
>  
> +- Flow Control: When using i40e devices (Intel(R) 700 Series) it is recommended
> +  to set Link State Change detection to interrupt mode. Otherwise it has been
> +  observed that using the default polling mode, flow control changes may not be
> +  applied, and flow control states will not be reflected correctly.
> +  The issue is under investigation, this is a temporary work around.
> +
>  Reporting Bugs
>  --------------
>  
> -- 
> 2.7.4
> 
> _______________________________________________
> dev mailing list
> dev at openvswitch.org
> https://mail.openvswitch.org/mailman/listinfo/ovs-dev

-- 
fbl